/**
 * tool.css —— Dev 工具箱自定义样式（精简重建）
 * 主要覆盖布局与 footer / 返回顶部按钮，Bootstrap 由 CDN 提供基础样式。
 */
html, body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    color: #333;
    background: #f5f7f9;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 15px;
}

.col10main {
    background: #fff;
    border: 1px solid #e6e6e6;
    border-radius: 6px;
    padding: 20px;
    margin: 20px 0;
}

.accordion-group {
    margin-bottom: 12px;
}

/* 工具页顶部 Tab 导航 */
.hbflag.nav {
    border-bottom: 2px solid #0f766e;
    margin-bottom: 16px;
}
.hbflag.nav li a {
    color: #555;
    border: none;
    border-radius: 4px 4px 0 0;
}
.hbflag.nav li.active a,
.hbflag.nav li a:hover {
    color: #fff;
    background: #0f766e;
}

/* 结果区 */
pre {
    background: #f8f9fa;
    border: 1px solid #eaeaea;
    border-radius: 4px;
    padding: 12px;
    white-space: pre-wrap;
    word-break: break-all;
}
pre code#result {
    font-family: Consolas, Monaco, "Courier New", monospace;
    font-size: 13px;
    color: #1a1a1a;
}

/* footer */
.copyright {
    text-align: center;
    padding: 24px 0;
    color: #888;
    font-size: 13px;
    border-top: 1px solid #eee;
    margin-top: 20px;
}
.copyright a {
    color: #0f766e;
    text-decoration: none;
}
.copyright a:hover {
    text-decoration: underline;
}

/* 返回顶部 */
.gotop {
    position: fixed;
    right: 24px;
    bottom: 48px;
    width: 42px;
    height: 42px;
    line-height: 42px;
    text-align: center;
    background: #0f766e;
    border-radius: 50%;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
    z-index: 999;
}
.gotop .arrow {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-bottom: 9px solid #fff;
}
.gotop:hover {
    background: #0d655c;
}

.text-center {
    text-align: center;
}